Method for treating paper for spiral mouthpieces of cigarettes.



M. C. GRAHL.

METHOD FOR TREATING PAPER FOR SPIRAL MOUTHPIEOES 0F GIGAEETTES. APPLIOATION FILED 11111327, 1913.

1,1 14,468. Patented Oct. 20, 19%

THE NORRIS PETERS 00.. PHOTO-LITMOH WASHINIEY'ON. u l:

- UNITED STATES PATENT! ,QF-FICE;

MAX CLEMENS GRAI-IL, or DRESDEN-LOBTAULGERMANY, Ass GNoR TC. IvE-IL SELLE CIGARETTEN-MASCI-IINEN-INDUSTRIE SYSTEM, OTTO BERGSTRASSER-AK- TIENGESELLSCI-IAFT, DRESDEN, GER

MANY, A CORPORATION OF GERMANY.

METHOD FOR TnnaTrNG PArEit FoR'sr'Inn ikrouriarrncns or crGAnnrTns.

To all whom tt mag concern: g

Be it known that. I, Max CLEMENS GRAHL,

a subject of the King of Saxony, residing in Dresden-Lobtau, in the Kingdom of Saxony, in the German Empire, have invented certain new and useful Improvements in Methods for Treating Paper for Spiral Mouthpieces of Cigarettes, of which the following isa specification. This invention relates to an improved device or apparatus for treating paper preparatory for using the same for the manufacture of spiral mouthpieces for cigarettes.

In themanufaeture of spiral mouthpieces for cigarettes a paper-strip was heretofore fed into the cigarette-machine from which the special blanks required for the mouthpiece-spirals were separated. The blankis then wound closely in the form of a spiral. It has been found'by practical experience, especially with cheaper kinds of paper, that in winding up the blank folds or wrinkles are formed in the same mainly in the longi- 1 tudinal direction of the spiral mouthpiece.

Vl hen these folds or wrinkles are formed on the exterior convolution of the spiral, which is placed directly under the delicate paper of the cigarette-sleeve, then these unevennesses are most objectionable. 'A'cigarette m'ade'with such a spiral does not ,show a smooth mouthpiece for the reason that the folds or wrinkles appear on the same. This is especially the case with the cheaper kinds of cigarettes in which a less expensive paper is selected for the spirals and shows this objectionable feature in a more pronounced manner.

The object of this invention therefore is,

to prevent the formation of folds or wrinkles in the spiral mouthpieces, so that with all kinds of paper a smooth surface is obtained in the body as well as on spirals.

Forthis purpose the invention consists in drawing the paper-strip, before thegindi-v vidual blanks are cut off from the same and rolled into a spiral, over a sharp edge while properly bending the same. This drawing of the paper-strip around a sharp edge imparts a certain degree of flexibility to the paper and prepares it thereby for the subsequent rolling into a smooth spiral. The pressure which is exerted on the strip during its passage around the sharp edge prevents 'r' the formation of foldscr wrinkles on the sp ilrals at the time when they areformed.

I he

Figure 1 a vertical longitudinal section of an apparatus or device for preparinga paper-strip for the spiral mouthpieces of cigarettes, and Fig. 2 is a plan-view ofthe same.

' Similar letters of-reference indicate corresponding parts throughout the figures of the drawing.

Thepaper-strip a, which is usedin the manufacture of spirals for cigarette-mouthpieces, is unwound from the roll 5 and con-o ducted primarily over a roller 0, the shaft of which is supported in suitable bearings of upright standards cl, which are attached by means ofscrew-bolts e to the bedplate A, which forms apart of thesupporting frame of the cigarette-machine. The two side-standards'cZ-are firmly connected with each other by a transverse bar f.

. In each of the side-standards (Z is arranged a rectangular opening; g. The openings 5/ serve for supporting a triangular stretching block 72,. The block it extends across the entire width of the device between the side standards. The lower edges of the openings 9 are'so arranged that thecblock 72, is located below the center of the roller 0, and sidewise of the same, as shown in v strip a is conducted from the roller 0 over the adjacent edge of the triangular block it, and then conduct-ed in a horizontal direction along the underside of the same, so that a sharp bending action is imparted thereto by the edge of theblock. From the block the paper is fed into the cigarette-machine or cigarette-sleeve machine for the subsequent steps, namely, the cutting oif of the blanks of the required size and the bendingof the same into the form of spirals. The edges of the triangular block may be slightly rounded oif Fig. l. The paper" Specification of Letters Patent. Patentd Oct, 20, 1914 Y Application flied June ZZ, 1913. 'Seria1'N .7f7 ,117

accompanying drawing represents in The block it can be shifted so as to be". placed inthe opening. 9 closer to or farther I away from the roller 0. The shifting or clamping in position of the block 71, is accomplished by horizontal set screws Z ancl'by inclined set-screws X; which are passed through threaded holes inthe side-standards d, and which engage the block at its opposite inclined sides. I As the sides of the block h are of equal size, the block each edge by turning it on its axis, especially when one edge is sufiiciently worn so as to require a new edge for this purpose.

I claim: a i

1. A process for rendering elastic the paper out of which the spiral inouthpieces for cigarettes are made, consisting of draw-' ing the entire paper strips under continuous tension over a sharp edge, said entire a paper strips being bent While being drawn-- over said sharp edge.

2 A process for rendering elastic the paper out of which spiral mouthpieces for cigarettes are made,:which consists in drawing the: entire paper strip from which the inouthpieces are out, over a sharp edge, said entire paper strip being bent while being can be used at drawn over said sharp edge, said entire paper strip being so drawn over said sharp edge before the spirals of paper are rolled.

3. The process of renc ering elastic-the MAXGLEMENS GRAHL.

Witnesses: RICHARD TFFERTE,

GUSTAV Mr'iLLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). G. 

